Name:  Potassium hydrogen phthalate

Molecular formula: C8H5O4K

Molecular weight:  204.22

CAS:   877-24-7

Properties

Melting point:     295-300℃
Boiling point:      378.3°C
Flash point:        196.7°C
Water solution:  80 g/L

Specification

Items                                Specification

Assay,%                            99.8 Min
PH                                     3.8-4.2
Clarity test/number           4 Max
Insoluble matter,%            0.005 Max
Loss on drying,%               0.05 Max
Chloride(Cl),%                   0.002 Max
Sodium(Na),%                   0.01 Max
Iron(Fe),%                         0.0005 Max
Ammonia(NH4),%              0.005 Max
Nitrogen(N),%                    0.006 Max
Heavy metal(Pb),%            0.0005 Max

Usage

Used in analytical reagent

Packaging

25kg/fiber drum or 25kg/bag

Sorage & Handing

Do not store in direct sunlight.Store in a tightly closed container.

Store in a cool,dry,well-ventilated area away from incompatible substances.

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